But the sad reality is that 1,000 units barely begins to address the need. In 2014, the regional Opportunity Collaborative found a deficit of 70,000 affordable homes in the Baltimore region, a circumstance that traps the poor in increasingly desperate conditions in neighborhoods with little access to jobs or transportation. And the effects are stark. Last year researchers at Harvard reported that Baltimore was the worst of the nation's 100 largest counties (or, in our case, county-equivalents) when it comes to a child's chance to escape poverty. Every year of childhood spent in the city reduced eventual lifetime earnings by 0.86 percent compared to an average county. The effect was even worse for boys. The researchers also showed that while Moving to Opportunity didn't have much effect on parents' income, it was strikingly positive for children who moved to better neighborhoods when they were young.